not got many links really. there's some DIY guides to installing and setting up the SMTs on the web, I don't know where though. the SMT is made by perfect power, website = perfectpower.com. I know about them mainly because C&R enterprises used to swear by them over unichips when I had veedub, so have seen them from time to time. they're a cool piggyback because unlike things like the unichip you can hook up to them from a laptop with free software and tune away. they control fuel and spark too. i know gunni runs one on his m42 too.
the old apexi thing is just the one with the dials at specific RPMs on the front, if setup correctly it does exactly the same as the split second.
for the m42 setup, the guy has a converter box ready for selling, but is still working on a complete product supplied with a MAF, converter box and wiring. when he does, i'll post up the details.
hoshy, my motor is now 2.1 and megasquirted (waiting for some ant mapping

), ITBs, cams and headwork are coming soon.

2.1 318is, MS, LPG. 200bhp, 175ft/lbs GONE!
Boxster, e46 m3, e36 sport touring and alpina B3 3.0